箭叶刺芋

箭叶刺芋的基本数据

养护难度

适合中级者

寿命

多年生植物

体型

叶柄最长63厘米，中央裂片长达26厘米（挺水叶）。水中时保持较小。

适宜温度

22〜26℃

浇水

无需CO2和肥料也能维持

光照强度

适合弱光。即使是挺水栽培也要避免强光。

CO2和肥料

CO2和肥料非必需。水下生长极其缓慢。

水温和水质

最适温度为22~26℃。在pH 5~7略呈酸性的水中生长。挺水栽培时应保持较高湿度。

底床和活着

根茎（根状茎）埋入底床容易腐烂。可用钓鱼线将其绑在沉木或石头上，或将根茎露出沙面种植。

修剪和繁殖方法

通过分割根茎来繁殖。由于生根的植株不耐移植，应在最初就确定好位置。

注意事项

挺水叶会长得很大，如要欣赏全尺寸大小需要宽敞的雨林缸。水草不要在野外丢弃，也不要让其逃逸到水族箱外。

关于箭叶刺芋

Anubias hastifolia is a large Anubias species with spear-shaped, three-lobed leaves and stalks reaching up to 63 cm. Learn how this perennial suits paludarium-style emersed growing for intermediate keepers.

开始养护箭叶刺芋前需要了解的7件事

1. 1Best Grown Emersed

   Anubias hastifolia is considered poorly adapted to permanent submersion. Rather than fully submerging it in an aquarium, growing it emersed in a humid paludarium, with its leaves in open air, lets it reach its natural leaf size.

2. 2Don't Bury the Rhizome

   As with other Anubias species, burying the rhizome in substrate causes it to rot. Instead, tie it to driftwood or rock so the rhizome stays exposed while the roots attach naturally.

3. 3Humidity Over Watering

   In emersed setups, maintaining humidity inside the paludarium matters more than daily watering. Letting it dry out can damage leaf tips, so misting or an automatic mister helps keep conditions stable.

4. 4Choose Its Spot From the Start

   Growth is extremely slow underwater, and once established the plant dislikes being moved. Decide carefully at the outset where to mount it on driftwood or rock, or where to place it in the paludarium. If you want more plants, divide the rhizome.

5. 5Watch Seasonal Temperature

   Being a tropical plant, it needs protection from cold air and water temperatures in cooler seasons. As a perennial, keeping conditions stable lets it keep producing leaves year-round.

6. 6Choose by Stalk and Leaf

   When selecting a plant, look for firm leaf stalks and leaves free of dark blotches or melting patches. A specimen with clearly defined, spear-to-three-lobed leaves is a good sign of healthy growth.

7. 7Submerged Leaves Stay Small

   It can also be grown fully submerged as an aquarium plant, but its leaves tend to stay smaller than when grown emersed. If you want to see its large leaves, plan for emersed, paludarium-style growing instead.

箭叶刺芋的常见问题

Q.Can it be grown fully submerged in an aquarium?

A.It can be kept submerged, but it's considered poorly suited to permanent submersion, and its leaves tend to stay smaller than when grown emersed. For its full-sized leaves, emersed growth in a paludarium is recommended.

Q.How large does it get?

A.Grown emersed, its leaf stalks can reach up to about 63 cm, with the central lobe extending as long as 26 cm. Submerged growth tends to stay noticeably smaller.

Q.Is it suitable for beginners?

A.It's generally considered an intermediate-level plant rather than one for complete beginners. It's easier to succeed with once you're comfortable with basic Anubias care, such as not burying the rhizome and avoiding strong direct sun.

Q.What kind of substrate or mounting does it need?

A.Rather than planting it with the rhizome buried in substrate, it does best mounted onto driftwood or rock so the roots can attach. In a paludarium, combining well-draining substrate with sphagnum moss around the mount works well.

Q.How long can it be kept?

A.As a perennial, it can be grown for several years or more when conditions suit it. The exact lifespan varies with growing conditions, so no single figure applies.

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